Smith is an iron-willed railroad detective. When his friend Murray is fired from the railroad and begins helping Rebstock wreck trains, Smith must go after him. He also seems to have an interest in Murray's wife (and vice versa).
A high-society gent has a secret life - he writes murder mysteries and hangs out with the police attempting to solve crimes. This causes him no end of problems when his wife wants to know about his little disappearances and exceptionally late nights out.
When Barry Corvall discovers that his new bride is a possible enemy agent, he resigns from the diplomatic service to go undercover to route out an espionage ring planning to destroy American industrial capability.
Elinor Bentley Fairchild's previous three grooms-to-be have either died or been maimed. Her aunt hires Lucky Downing to become engaged to her for a month to break the curse. But Lucky becomes a target of what appears to be the ghost of one of the former fiances.
A female research scientist conducting experiments on a new anesthetic has a very bad week. Her scheming assistant intentionally scars her face, her almost-fiancee appears to have deserted her and she finds herself being blackmailed by a women she accidentally knocked down with her car.
The daughter of a musical mentor adores a promising composer, who is quite fond of the adolescent. When her father dies, an uncle arrives with his own grown daughter, who begins a romance with the composer which culminates in marriage but creates an emotional rivalry that affects the three.
Andre Marbel is the upper-class doctor who is able to continue his practice above suspicion even though he is a leader in the French Resistance. His nurse supports his activities, but her Nazi-brainwashed husband provides the tension.
Greedy diamond mine owner Eli Snedeker, resentful that his ex-foreman John Gamble stopped him from taking over kindly, but drunken, mine owner Roger Smythe's mine just as he was about to strike it rich, kills Smythe and blames it on Gamble. Grabbing the diamonds, Gamble flees Africa to England...